He delighted people with his charm and 'ease' of manner. [=his relaxed and easy manner]
The students might respond better if the teacher 'eased up on' them a little.
These features can be modified 'with the greatest of ease'. [=very easily]
(..) I get paid no matter how much time you spend in jail. Yes, sir. I know you do, sir. - Fuck you, Harold! - All right. At ease. - Let's sort this thing out. - Shit! There was a platoon meeting on September at in the afternoon. Lieutenant Kendrick says (..)1992 A Few Good Men